136650637 has 2 divisors, whose sum is σ = 136650638. Its totient is φ = 136650636.

The previous prime is 136650629. The next prime is 136650653. The reversal of 136650637 is 736056631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120538441 + 16112196 = 10979^2 + 4014^2 .

It is an emirp because it is prime and its reverse (736056631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136650637 - 2³ = 136650629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136650596 and 136650605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136650737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68325318 + 68325319.

It is an arithmetic number, because the mean of its divisors is an integer number (68325319).

Almost surely, 2^136650637 is an apocalyptic number.

It is an amenable number.

136650637 is a deficient number, since it is larger than the sum of its proper divisors (1).

136650637 is an equidigital number, since it uses as much as digits as its factorization.

136650637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 136650637 is about 11689.7663364158. The cubic root of 136650637 is about 515.0750976043.

It can be divided in two parts, 1366 and 50637, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 136650637 in words is "one hundred thirty-six million, six hundred fifty thousand, six hundred thirty-seven".